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R0 | Maximum number of sockets available |
The purpose of this call is to read how many sockets the system could allocate.
This SWI directly corresponds to the function getstablesize and would ordinarily be called from C using the getstablesize()
function in socklib.h
.
The value may be less than FD_SETSIZE, that is the number of sockets which can be polled by select() which is not the same as the maximum number of sockets that can exist.